Before the advent of TIA Portal, Siemens' SIMATIC Manager played a pivotal role in programming S7-300 and S7-400 PLCs, particularly for older CPU models still active in industrial sites. While TIA Portal has become the go-to platform for newer projects, many sites still rely on SIMATIC Manager to maintain and program their legacy systems.
This is a companion discussion topic for the original entry at https://www.solisplc.com/tutorials/an-introduction-to-siemens-simatic-manager-step-7